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diff --git a/chart2/source/inc/chartview/DrawModelWrapper.hxx b/chart2/source/inc/chartview/DrawModelWrapper.hxx
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+++ b/chart2/source/inc/chartview/DrawModelWrapper.hxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+#pragma once
+
+#include <svx/svdmodel.hxx>
+#include <svx/unopage.hxx>
+#include <svx/unoshape.hxx>
+#include <chartview/chartviewdllapi.hxx>
+
+namespace com::sun::star::lang { class XMultiServiceFactory; }
+namespace com::sun::star::frame { class XModel; }
+namespace com::sun::star::drawing { class XDrawPage; }
+namespace com::sun::star::drawing { class XShape; }
+namespace com::sun::star::drawing { class XShapes; }
+
+class SdrObjList;
+class SdrObject;
+
+namespace chart
+{
+
+class OOO_DLLPUBLIC_CHARTVIEW DrawModelWrapper final : private SdrModel
+{
+private:
+    rtl::Reference<SvxDrawPage> m_xMainDrawPage;
+    rtl::Reference<SvxDrawPage> m_xHiddenDrawPage;
+    rtl::Reference<SfxItemPool> m_xChartItemPool;
+    VclPtr<OutputDevice> m_pRefDevice;
+
+public:
+    SAL_DLLPRIVATE DrawModelWrapper();
+    SAL_DLLPRIVATE virtual ~DrawModelWrapper() override;
+
+    css::uno::Reference< css::lang::XMultiServiceFactory > getShapeFactory();
+
+    // the main page will contain the normal view objects
+    const rtl::Reference<SvxDrawPage> & getMainDrawPage();
+    SAL_DLLPRIVATE void clearMainDrawPage();
+
+    // the extra page is not visible, but contains some extras like the symbols for data points
+    const rtl::Reference<SvxDrawPage> & getHiddenDrawPage();
+
+    static rtl::Reference<SvxShapeGroupAnyD>
+         getChartRootShape( const rtl::Reference<SvxDrawPage>& xPage );
+
+    SAL_DLLPRIVATE void lockControllers();
+    SAL_DLLPRIVATE void unlockControllers();
+
+    OutputDevice* getReferenceDevice() const;
+
+    SfxItemPool&            GetItemPool();
+
+    SAL_DLLPRIVATE virtual css::uno::Reference< css::frame::XModel >
+        createUnoModel() override;
+    SAL_DLLPRIVATE css::uno::Reference< css::frame::XModel >
+        getUnoModel();
+    SdrModel& getSdrModel();
+
+    XColorListRef     GetColorList() const;
+    XDashListRef      GetDashList() const;
+    XLineEndListRef   GetLineEndList() const;
+    XGradientListRef  GetGradientList() const;
+    XHatchListRef     GetHatchList() const;
+    XBitmapListRef    GetBitmapList() const;
+    XPatternListRef   GetPatternList() const;
+
+    SdrObject* getNamedSdrObject( const OUString& rName );
+    static SdrObject* getNamedSdrObject( const OUString& rName, SdrObjList const * pObjList );
+
+    static bool removeShape( const rtl::Reference<SvxShape>& xShape );
+
+    void dumpAsXml(xmlTextWriterPtr pWriter) const override;
+};
+} //namespace chart
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */